222121013 has 8 divisors (see below), whose sum is σ = 230236032. Its totient is φ = 214147296.

The previous prime is 222121007. The next prime is 222121021. The reversal of 222121013 is 310121222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222121013 - 2²⁴ = 205343797 is a prime.

It is a super-2 number, since 2×222121013² = 98675488832292338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222121033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32120 + ... + 38417.

It is an arithmetic number, because the mean of its divisors is an integer number (28779504).

Almost surely, 2^222121013 is an apocalyptic number.

It is an amenable number.

222121013 is a deficient number, since it is larger than the sum of its proper divisors (8115019).

222121013 is an equidigital number, since it uses as much as digits as its factorization.

222121013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70651.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 222121013 is about 14903.7248028807. The cubic root of 222121013 is about 605.6148956329.

Adding to 222121013 its reverse (310121222), we get a palindrome (532242235).

The spelling of 222121013 in words is "two hundred twenty-two million, one hundred twenty-one thousand, thirteen".